https://sourceforge.net/projects/opencvlibrary/files/

选择合适的版本下载即可 

 这里使用opencv-3.1.0.exe执行

 将需要bin目录加入到环境变量Path

D:\opencv\31\opencv\build\x64\vc14\bin

 

 

 

 

 

#include<opencv2/opencv.hpp>
#include <iostream>
using namespace cv;
int main()
{
   
    Mat src = imread("D:/Snipaste_2023-06-26_08-30-27.png");
    if (src.empty()) {
        printf("could not load image....\n");
    }
    namedWindow("test opencv stup", CV_WINDOW_AUTOSIZE);
    imshow("test Opencv stup", src);
    waitKey(0);
    return 0;

}